Sourcing boron trifluoride THF from China
Boron trifluoride tetrahydrofuran complex has a candidate heading 2942 line carrying 0% UK duty from China, subject to classification. UK REACH and chemical classification, labelling and packaging duties need checking before supply. Cambridge China Bridge sources boron trifluoride tetrahydrofuran complex.
Duty and classification for this complex
Read from the UK Trade Tariff on 15 October 2026, heading 2942 covers other organic compounds. Its supplied lines all carry 0% duty for goods from China, with no anti-dumping or countervailing measure and no suspension recorded. The candidate for this complex is 2942 00 00 90, “Other”, subject to confirmation from the product's identity and composition.
The tariff attaches “Veterinary control” and “Export control - Waste” to this line. The veterinary note concerns products of animal origin; the waste measure is labelled as an export control. Their application to this chemical import has not been established: ask your customs broker to confirm the requirements and declaration treatment. Environment Agency guidance says waste shipment controls only apply where the material is waste.
The supplied data contains only this relevant candidate line, so the table excludes unrelated reagents. Confirm the commodity code using the chemical identity, composition and supplied form. For the related ether complex and wider heading context, see boron trifluoride diethyl etherate.
| Goods | Commodity code | Duty | Anti-dumping or countervailing duty on China |
|---|---|---|---|
| Other organic compounds: candidate line for this complex, subject to classification | 2942 00 00 90 | 0% | None |
Specify the tetrahydrofuran complex precisely
Write the full chemical name and supplier's chemical identifier into the order. State whether you want the complex itself or a solution, and name any additional solvent. Agree boron trifluoride content, assay method, water and impurity limits, appearance, pack material, closure and storage conditions. Ask for batch-specific results rather than a catalogue specification.
For Great Britain, confirm the applicable UK REACH registration requirements with HSE for your annual substance imports, including any only representative arrangement. Classification and labelling must be carried out by someone with scientific competence. Confirm the applicable safety data sheet requirements with HSE, request an English version, and arrange the supply labels and packaging before resale. A safety data sheet is not a risk assessment.
Worked duty example
Illustrative example, not a quote: Illustrative laboratory order of sealed bottles, subject to commodity-code confirmation under 2942 00 00 90, invoiced at £2,500 free on board, with £980 of freight and insurance to the UK. The customs value is £3,480. Duty at 0% is £0. Import VAT at 20% is charged on the customs value plus duty, £3,480, so it is £696. With no duty, the only import tax is the VAT, which a VAT-registered importer can usually reclaim. The import duty and VAT guide explains each step.
Inspection checklist
Identity: match the full tetrahydrofuran-complex name across the order, bottle labels, safety data sheet and certificate of analysis.
Composition: check the declared boron trifluoride content, assay basis, additional solvent and batch results against the agreed specification.
Packaging: inspect unopened bottles for leakage, damaged closures and unreadable labels; compare the pack material and seals with the agreed packing specification.
Release: have a competent laboratory plan any sampling and confirm agreed assay and water results before releasing the batch. See quality inspection explained.
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What goes wrong
A quotation saying only “boron trifluoride complex” leaves room for the wrong ligand or a different solution strength. An assay without a stated basis can also make different offers look equivalent. Keep the tetrahydrofuran identity, composition and analytical method in the purchase specification.
A matching certificate does not resolve leaking bottles, mismatched batch labels or an unsuitable formulation. Hold discrepant packs, document the differences and agree a laboratory investigation before use. Ask for producer and batch-traceability checks through factory verification.
Cambridge China Bridge sources these products for UK businesses, checking the factory and the documents before shipment. See factory verification. For repeat volumes, see container programmes.
Frequently asked questions
What is the UK import duty on this complex from China?
The supplied tariff data gives 0% for candidate code 2942 00 00 90, with no anti-dumping or countervailing measure recorded. Confirm classification before declaring.
Is the tetrahydrofuran complex the same as diethyl etherate?
They identify different complexes. Specify the tetrahydrofuran complex by its full name and chemical identifier; agree any substitution with your process chemist before ordering.
Does UK REACH apply to a laboratory order?
Check your annual imports of the substance, rather than this order alone. Confirm with HSE whether registration or coverage through an only representative applies.
What should the batch certificate show?
Ask for the full product identity, batch reference, boron trifluoride content, assay method, water and agreed impurity results. Match it to the delivered bottle labels.